ATBECHDEDKESFRGBGRITLILUNLSEMCPTIESILTLVFIROMKCYALTRBGCZEE....SK................JDIM350 (Ver 2.1 Jan 2001) 1620000/01291145EUROPEAN PATENT APPLICATIONA320040107EP02078311.420020812EnEnEnRE20010031 U20010907IT20040107200402200303122003117 7B 28B 3/00 AdeForm zum isostatischen Pressen von pulverförmigen Presslingen, insbesondere für keramische PlattenenIsostatic mould die for pressing products in powder form, in particular for ceramic tilesfrMatrice pour le pressage isostatique de pièces moulées en matière pulvérulente, en particulier pour carreaux en céramique1SACMI COOPERATIVA MECCANICI IMOLA Soc. Coop. a r.l.0287180023902sacmi cooperativa meccanici17/A, via Selice Provinciale40026 Imola (Bologna)ITRivola, Pietro17/A, Via Selice Provinciale40026 Imola, BolognaITCorradini, Corradoet al00042172Studio Ing. C. CORRADINI & C. S.r.l. 4, Via Dante Alighieri42100 Reggio EmiliaITATBEBGCHCYCZDEDKEEESFIFRGBGRIEITLILUMCNLPTSESKTRALLTLVMKROSI20040107200402

The die comprises a rigid body (20) having its upper surface (20') covered by a flexible covering membrane (11) which defines the active surface of the die, and a plurality of seats (30) of vertical axis provided in the rigid body (20); within said seats (30) there is positioned a corresponding plurality of vertically slidable pistons (40) which have an active surface (40') for acting on the material being pressed, and are disposed in contact with an operative liquid which fills the lower chambers (31) of the seats (30) and connects said chambers (31) together; said covering membrane (11) covers the active surface (40') of the pistons (40), said pistons (40) acting on the material being pressed via the covering membrane (11). According to the invention each seat comprises abutment means (35) arranged to limit the stroke of the piston (40) in the direction of movement both towards the interior of the seat, and outwards from the seat (30).